DCAT-US 3 Schedule, Maintenance, and Release Plan
Overview
DCAT-US 3 Schedule, Maintenance, and Release Plan
Source
Details
This page tracks the current status and upcoming schedule for DCAT-US 3.0 implementation on Data.gov. Last updated: June 23, 2026.
Questions or feedback? Contact us at datagovhelp@gsa.gov.
What is available now
The following tools and resources are live and ready to use.
| Resource | Location | Notes |
|---|---|---|
| DCAT-US 3.0 schema documentation | resources.data.gov/resources/dcat-us3/ | Metadata schema documentation for all classes with examples |
| DCAT-US 3.0 validator | harvest.data.gov/validate/ | Select the DCAT-US 3.0 Catalog schema option to test your metadata |
| Harvest source review | harvest.data.gov | Agencies can review their harvest sources and schedules |
| Harvester help | resources.data.gov/resources/harvester-what-is-harvesting/ | Guidance on how harvesting works; feedback welcome |
| DCAT-US v1.1 to v3.0 migration scripts | convert_dcat_1_1_to_3_0.py and transforms.py on GitHub | Python scripts that automate field-level migration from v1.1 to v3.0. See the migration guide for plain-language documentation of what the scripts do. |
In progress
The following items are currently being worked on and are expected to be available in upcoming sprints.
Agencies do not need to wait for the implementation guide to begin working toward DCAT-US v3.0 compliance. The tools and resources above are available now. When released, the implementation guide will provide additional policy and procedural context for agencies building or updating their data inventories. Agencies can choose to wait for the implementation guide or move forward now based on their own internal guidance.
| Item | Expected | Notes |
|---|---|---|
| DCAT-US 3.0 implementation guide (field reference with M-25-05 mapping and step-by-step guidance for building a compliant data inventory) | Sept 2026 | Pending CDO Tiger Team completion |
| harvest.data.gov and catalog.data.gov support for DCAT-US 3.0 ingestion | August & September 2026 | Agencies will be able to publish DCAT-US 3.0 metadata and have it harvested and displayed in Data.gov |
| DCAT-US v3.0 Schema Maintenance Plan | October 1, 2026 | Draft available at github.com/GSA/dcat-us/blob/main/MAINTENANCE.md. Data.gov works with CDO and agencies to establish maintenance cycle and plan. |
Upcoming
The following items are planned for later in 2026. Timing may shift as capacity and priorities evolve.
| Item | Target | Notes |
|---|---|---|
| inventory.data.gov DCAT-US 3.0 support | Fall 2026 | inventory.data.gov reprogramming targeted for fall 2026 |
About this page
This page is maintained by the Data.gov team at GSA Technology Transformation Services. It is updated every two weeks.
DCAT-US 3.0 is the updated U.S. federal metadata standard required under OMB M-25-05 and anchored in the OPEN Government Data Act and the Evidence Act.
Data.gov is the implementation support partner for DCAT-US 3.0.
Compliance guidance is issued through OMB and the CDO Council.